Bump urllib3 from 2.5.0 to 2.6.0 (#279)

Bumps [urllib3](https://github.com/urllib3/urllib3) from 2.5.0 to 2.6.0.
- [Release notes](https://github.com/urllib3/urllib3/releases)
- [Changelog](https://github.com/urllib3/urllib3/blob/main/CHANGES.rst)
- [Commits](urllib3/urllib3@2.5.0...2.6.0)

---
updated-dependencies:
- dependency-name: urllib3
  dependency-version: 2.6.0
  dependency-type: indirect
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

dev-requirements.txt

@@ -1,5 +1,3 @@
-backports-tarfile==1.2.0
-    # via jaraco-context
 certifi==2025.11.12
     # via requests
 cffi==2.0.0
@@ -20,10 +18,6 @@ id==1.5.0
     # via twine
 idna==3.11
     # via requests
-importlib-metadata==8.7.0
-    # via
-    #   keyring
-    #   twine
 jaraco-classes==3.4.0
     # via keyring
 jaraco-context==6.0.1
@@ -85,15 +79,9 @@ tox==3.23.1
     # via -r dev-requirements.in
 twine==6.2.0
     # via -r dev-requirements.in
-typing-extensions==4.15.0
-    # via
-    #   cryptography
-    #   virtualenv
-urllib3==2.5.0
+urllib3==2.6.0
     # via
     #   requests
     #   twine
 virtualenv==20.35.4
     # via tox
-zipp==3.23.0
-    # via importlib-metadata